// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// This file is used to define IPC::ParamTraits<> specializations for a number
// of types so that they can be serialized over IPC.  IPC::ParamTraits<>
// specializations for basic types (like int and std::string) and types in the
// 'base' project can be found in ipc/ipc_message_utils.h.  This file contains
// specializations for types that are used by the content code, and which need
// manual serialization code.  This is usually because they're not structs with
// public members, or because the same type is being used in multiple
// *_messages.h headers.

#ifndef CONTENT_COMMON_CONTENT_PARAM_TRAITS_H_
#define CONTENT_COMMON_CONTENT_PARAM_TRAITS_H_

#include "content/common/content_param_traits_macros.h"
#include "content/common/cursors/webcursor.h"
#include "third_party/WebKit/public/platform/WebInputEvent.h"

namespace IPC {

template <>
struct ParamTraits<content::WebCursor> {
    typedef content::WebCursor param_type;
    static void Write(base::Pickle* m, const param_type& p) { p.Serialize(m); }
    static bool Read(const base::Pickle* m,
        base::PickleIterator* iter,
        param_type* r)
    {
        return r->Deserialize(iter);
    }
    static void Log(const param_type& p, std::string* l)
    {
        l->append("<WebCursor>");
    }
};

typedef const blink::WebInputEvent* WebInputEventPointer;
template <>
struct ParamTraits<WebInputEventPointer> {
    typedef WebInputEventPointer param_type;
    static void GetSize(base::PickleSizer* s, const param_type& p);
    static void Write(base::Pickle* m, const param_type& p);
    // Note: upon read, the event has the lifetime of the message.
    static bool Read(const base::Pickle* m,
        base::PickleIterator* iter,
        param_type* r);
    static void Log(const param_type& p, std::string* l);
};

} // namespace IPC

#endif // CONTENT_COMMON_CONTENT_PARAM_TRAITS_H_
